Fabricated wind power tower tube structure and method

Abstract

The invention discloses an assembly type wind power tower tube structure and method, and particularly relates to the technical field of wind power towers, a connecting plate is arranged between two circumferentially adjacent corrugated tower plates, a connecting assembly is arranged between two vertically adjacent corrugated tower plates, and a positioning mechanism is arranged on the connecting plate. The positioning mechanism comprises a laser transmitter arranged at the topmost end of the connecting plate, a diffuse reflection plate is arranged on the connecting assembly, and the transmitting end of the laser transmitter faces the corresponding diffuse reflection plate. According to the invention, by arranging the corrugated tower plate with the longitudinal section in the shape of the isosceles trapezoid with the wide lower part and the narrow upper part, the thickness of the corrugated tower plate is gradually thinned from bottom to top, so that the thickness of the whole plate of the tower drum is gradually thinned from bottom to top, and the problems of stress concentration and high gravity center of the middle-upper section of the tower drum are avoided; the overall wind resistance of the tower drum is effectively improved, and the gravity center height of the tower drum is remarkably reduced.

Description

Technical Field

[0001] This invention relates to the field of wind turbine tower technology, and more specifically, to a prefabricated wind turbine tower structure and method. Background Technology

[0002] Cylindrical towers are currently the most mainstream form of wind turbine towers, typically constructed from multiple welded or flanged steel sections. To capture stronger and more stable wind energy at higher altitudes, wind turbine towers are being built increasingly taller, resulting in larger overall tower diameters. This is especially true for ultra-tall towers exceeding 180 meters in height, where the diameter of the foundation section can even exceed 8 meters. Therefore, to reduce transportation difficulties, segmented towers have gradually emerged. These towers effectively reduce transportation challenges by further dividing a single section into multiple modular tower pieces.

[0003] However, existing segmented towers still have many drawbacks in actual use. For example, the tower is shaped like a truncated cone, and as the tower gets taller, the difference in diameter between its bottom and top ends also increases. Since the tower segments are generally made of steel plates of equal thickness, this results in a large amount of material redundancy in the low-stress area of ​​the upper part of the tower. This not only raises the height of the tower's center of gravity and reduces its wind resistance, but also significantly increases the raw material cost of tower manufacturing. Summary of the Invention

[0004] The present invention provides a prefabricated wind turbine tower structure and method, which aims to solve the following problem: the tower sections of existing segmented towers are generally made of steel plates of equal thickness, which results in a large amount of material redundancy in the low-stress area of ​​the upper part of the tower. This not only raises the height of the tower's center of gravity and reduces the tower's wind resistance, but also significantly increases the raw material cost of tower manufacturing.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated wind turbine tower structure, comprising: The assembly mechanism consists of several tower sections, each of which is truncated cone-shaped. The maximum diameter of the tower sections decreases sequentially from bottom to top, and the tower sections are connected end to end in order of decreasing maximum diameter. Each tower section includes several corrugated tower plates, which are arranged in an array of regular polygons. The longitudinal section of the corrugated tower plate is an isosceles trapezoid that is wider at the bottom and narrower at the top. Two corrugated tower plates that are circumferentially adjacent are connected by a connecting plate, and two corrugated tower plates that are vertically adjacent are connected by a connecting assembly. The connecting plate is equipped with a positioning mechanism, which includes a laser emitter located at the top of the connecting plate. The connecting assembly is equipped with a diffuse reflector plate, and the emitting end of the laser emitter faces the corresponding diffuse reflector plate.

[0006] In a preferred embodiment, the positioning mechanism includes a laser emitting assembly, which includes a sliding frame 1 disposed at the top of the connecting plate, a mounting base disposed on the sliding frame 1, a laser emitter rotatably connected to the mounting base, and a level on the laser emitter.

[0007] In a preferred embodiment, the positioning mechanism includes a laser sensing component, which includes a sliding frame two fixed to the connecting component, and a diffuse reflector plate is disposed on the sliding frame two.

[0008] In a preferred embodiment, the connecting assembly includes multiple sets of fixing plates. Each set of fixing plates includes several fixing plate units arranged in an array. The fixing plates are used to fix two adjacent corrugated tower plates. A horizontal plate is provided on the side of the fixing plate away from the corrugated tower plate. Several reinforcing ribs are evenly arranged between the horizontal plate and the fixing plate.

[0009] In a preferred embodiment, the left and right sides of the corrugated tower plate are each provided with a first connection hole, and the upper and lower sides of the corrugated tower plate are each provided with a second connection hole. The first connection hole is adapted to the connecting plate, and the second connection hole is adapted to the fixing plate. The opposite sides of two circumferentially adjacent corrugated tower plates are arranged in parallel, and the mating surfaces of two upper and lower adjacent corrugated tower plates have the same thickness.

[0010] In a preferred embodiment, several guide plates are provided on the inner sides of both the upper and lower ends of the corrugated tower plate, and two guide grooves are symmetrically arranged on the side of the fixing plate near the corrugated tower plate, with the guide plates matching the corresponding guide grooves.

[0011] In a preferred embodiment, the connecting plate has a T-shaped cross-section, and the flanges and uprights of the connecting plate are each provided with an array of threaded holes.

[0012] In a preferred embodiment, the assembly mechanism includes a horizontally placed annular plate with several support seats. Several fixing plates are detachably installed on the corresponding support seats, and the support seats are used to support the corrugated tower plate.

[0013] In a preferred embodiment, a bolt hanger is provided on the outer side of the corrugated tower plate for suspending bolts.

[0014] An assembly method for a prefabricated wind turbine tower structure includes the following steps; Step 1: Pre-fix the connecting components that are compatible with the bottom of any set of corrugated tower plates onto the assembly mechanism in a circular array, and pre-install a diffuse reflector plate on the inner side of the connecting components. Step 2: Pre-fix the connecting plate on any side of the corrugated tower plate, and pre-install a laser emitter at the top of the connecting plate, so that the emitting end of the laser emitter is perpendicular to the corresponding diffuse reflection plate. Step 3: Use a crane to vertically lift the corrugated tower plate from the top and then lower it vertically into the corresponding support. Adjust the tilt angle of the corrugated tower plate with the crane until the tilt angle reaches the predetermined range, at which point the laser emitted by the laser emitter will just illuminate the diffuse reflection plate. At this point, use bolts to fix two adjacent corrugated tower plates in the circumferential direction. Step 4: The assembled tower sections are hoisted and spliced ​​in descending order of their maximum diameter, from bottom to top.

[0015] The beneficial effects of this invention are as follows: 1. This invention uses a corrugated tower plate with an isosceles trapezoidal cross-section that is wider at the bottom and narrower at the top. This makes the thickness of the corrugated tower plate gradually thinner from bottom to top, and thus the overall thickness of the tower plate gradually thinner from bottom to top. This avoids stress concentration and high center of gravity in the middle and upper sections of the tower, effectively improves the overall wind resistance of the tower, and significantly reduces the height of the tower's center of gravity.

[0016] 2. By setting up a positioning mechanism, this invention utilizes the combined effect of a laser emitter and a diffuse reflector plate to enable workers to visually determine whether the corrugated tower plate and the tower section are precisely aligned, effectively improving the overall assembly accuracy of the tower and making it convenient to use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a schematic diagram of the tower section of the present invention; Figure 3 This is a top view of the tower section of the present invention. Figure 4 This is a schematic diagram of the assembly mechanism of the present invention; Figure 5 This is a top view of the corrugated tower plate portion of the present invention. Figure 6 This is a schematic diagram of the structure of the laser emitting component of the present invention; Figure 7 This is a schematic diagram of the structure of the laser sensing component of the present invention; Figure 8 This is an exploded structural diagram of the laser emitting component of the present invention; Figure 9 This is a schematic diagram of the guide groove portion of the present invention; Figure 10 This is an exploded structural diagram of the connection component and the laser sensing component of the present invention; Figure 11 This is a flowchart of the wind turbine tower structure assembly method of the present invention.

[0018] The attached diagram is labeled as follows: 1. Tower section; 11. Corrugated tower plate; 12. Connection hole one; 13. Connection hole two; 14. Guide plate; 2. Connecting plate; 3. Connecting assembly; 31. Fixing plate; 32. Horizontal plate; 33. Reinforcing rib plate; 34. Guide groove; 35. Connecting seat; 4. Positioning mechanism; 41. Laser emitting assembly; 411. Sliding frame one; 412. Mounting seat; 413. Laser emitter; 414. Level; 42. Laser sensing assembly; 421. Sliding frame two; 422. Diffuse reflection plate; 5. Bolt hanging plate; 6. Assembly mechanism; 61. Annular plate; 62. Support seat. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Because the tower is shaped like a frustum of a cone, meaning its longitudinal section is an isosceles trapezoid that is wider at the bottom and narrower at the top, any individual section of the tower will also have an isosceles trapezoidal cross-section that is wider at the bottom and narrower at the top. As the height of the wind turbine tower increases, the diameter at the bottom of the tower may even be more than twice the diameter at the top. To ensure the overall stability and wind resistance of the tower, the lower part of the tower needs to be made of thicker plates. However, if the entire tower is made of plates of equal thickness, it will cause a "weak part strong material" phenomenon in the low-stress area of ​​the upper and middle sections of the tower. This will not only lead to stress concentration in the upper and middle parts of the tower, but also increase the overall center of gravity of the tower, thus reducing the wind resistance of the tower.

[0021] In the actual assembly of the segmented tower, all parts of the tower are first transported to the tower erection position, and a flat working surface is prepared around the tower erection position. Workers place tooling (assembly mechanism 6 in this invention) for assembling the corrugated tower plate 11 on the working surface. The tooling is usually arranged in the shape of a regular polygon on the working surface, and the diameter of the tooling is adjustable to adapt to tower sections of different diameters. Each tower section is first spliced ​​on the tooling on the ground and then hoisted and spliced ​​in sequence. Therefore, each set of corrugated tower plates 11 is assembled on the ground, and during the assembly process, the corrugated tower plate 11 will only have the corresponding connecting component 3 installed at its bottom.

[0022] Example 1 (refer to the appendix of the instruction manual) Figures 1 to 10This embodiment proposes a prefabricated wind turbine tower structure to address the problem in existing technologies where towers manufactured using steel plates of uniform thickness suffer from material redundancy and stress concentration in the low-stress zone of the upper part of the tower. This not only raises the tower's center of gravity and reduces its wind resistance but also significantly increases the raw material costs of tower manufacturing. The structure includes: The assembly mechanism 6 and several tower sections 1 are all truncated cones. The maximum diameter of the several tower sections 1 decreases sequentially from bottom to top, and the several tower sections 1 are connected end to end in the order of decreasing maximum diameter. It should be noted that the maximum diameter of each tower section 1 is different, and the diameters of the beginning and end of two adjacent tower sections 1 are the same, which can achieve a smooth transition when they are joined.

[0023] Each tower section 1 includes several corrugated tower plates 11, which are arranged in an array in the form of a regular polygon. The longitudinal section of the corrugated tower plate 11 is an isosceles trapezoid that is wider at the bottom and narrower at the top. It should be noted that the cross-section of the corrugated tower plate 11 is approximately "army-shaped", and the thickness of the corrugated tower plate 11 gradually decreases from bottom to top. The thickness of the thickest part of the corrugated tower plate 11 at the bottom can be in the range of 45-60mm, and the thickness of the thinnest part of the corrugated tower plate 11 at the top can be in the range of 15-25mm.

[0024] Two corrugated tower plates 11 that are circumferentially adjacent are connected by a connecting plate 2, and two corrugated tower plates 11 that are vertically adjacent are connected by a connecting component 3. A positioning mechanism 4 is provided on the connecting plate 2. The positioning mechanism 4 includes a laser emitter 413 located at the top of the connecting plate 2. A diffuse reflector 422 is provided on the connecting component 3. The emitting end of the laser emitter 413 faces the corresponding diffuse reflector 422.

[0025] It should be noted that the connecting plate 2 fixes two adjacent corrugated tower plates 11 in the circumferential direction with bolts, and the connecting assembly 3 fixes two adjacent corrugated tower plates 11 in the upper and lower dimensions with bolts. The preset installation angle of the laser emitter 413 is adapted to the tilt angle of the corrugated tower plate 11. That is, the laser emitted by the laser emitter 413 will only illuminate the diffuse reflection plate 422 when the tilt angle of the corrugated tower plate 11 is within the predetermined range. Since the corrugated tower plate 11 will undergo a certain deformation during the bolt fixing process, if there is a slight deviation at the joint between the connecting assembly 3 and the corrugated tower plate 11, when the deviation is transmitted to the top of the corrugated tower plate 11, it will cause obvious misalignment between the two adjacent corrugated tower plates 11. If the bolts are used to correct the misalignment, it will cause stress concentration in the corrugated tower plate 11, which will affect the overall stability of the tower.

[0026] In this embodiment, the specific implementation scenario is as follows: First, the vertical edges of each individual corrugated tower plate 11 in a group of corrugated tower plates 11 to be assembled are bolted to the connecting plate 2. Then, a set of fixing plates 31 corresponding to the bottom diameter of the group of corrugated tower plates 11 are sequentially fixed to the pre-set support base 62, and diffuse reflection plates 422 are pre-installed on all the fixing plates 31. Next, a corrugated tower plate 11 is vertically lifted by a crane and then vertically lowered from above the connecting assembly 3 into any one of the support bases 62. When the bottom of the corrugated tower plate 11 is inserted into the top slot formed by the support base 62 and the corresponding fixing plate 31, the slot is designed to facilitate the assembly of the corrugated tower plate 11. Because a redundant gap has been left, the positioning function of the connecting component 3 alone cannot keep the corrugated tower plate 11 fixed at a precise tilt angle. At this time, a crane is needed to adjust the tilt angle of the corrugated tower plate 11. During the hoisting process, the laser emitter 413 will be turned on in advance. Therefore, when the tilt angle of the corrugated tower plate 11 reaches the predetermined range, the laser of the laser emitter 413 will just shine on the diffuse reflection plate 422. At this time, the staff can promptly and intuitively determine that the tilt angle of the corrugated tower plate 11 has been adjusted to the correct position. Therefore, bolts can be used to fix the connecting component 3 to the bottom end of the corrugated tower plate 11, thereby fixing the corrugated tower plate 11 to the fixed plate 31 stably at the required tilt angle. Furthermore, the length of a single corrugated tower plate 11 is relatively large, especially in some super high tower projects, such as some super high towers with a height of over 180 meters, where the length of a single corrugated tower plate 11 may even exceed 18 meters. Therefore, during the hoisting process, it is difficult for ground operators to visually observe whether the hoisting angle is accurate. Moreover, since the size and weight of a single corrugated tower plate 11 are both large, even exceeding 5 tons, the danger is relatively high. Therefore, during the hoisting process, the staff need to stay away from the vicinity of the corrugated tower plate 11. Construction usually needs to be carried out in clear and windless weather, so the influence of ambient light is relatively large. When the laser emitted by the laser emitter 413 shines on the diffuse reflector plate 422, it will be amplified and reflected off the diffuse reflector plate 422, thereby enabling the staff to visually determine whether the hoisting is completed, so as to facilitate on-site command. Furthermore, the laser emitter 413 can emit a "green light" to make it more visible during the day.

[0027] Example 2 is based on Example 1. This example proposes a positioning mechanism 4 to solve the problem in the prior art that it is difficult to determine whether two adjacent tower sections 1 are precisely aligned during hoisting and docking. For example, since the entire tower needs to maintain a precise conicity to ensure stable wind resistance, the docking of each tower section 1 needs to maintain high precision to reduce the accumulation of errors.

[0028] The positioning mechanism 4 includes a laser emitting assembly 41, which includes a sliding frame 411 at the top of the connecting plate 2, a mounting base 412 on the sliding frame 411, a laser emitter 413 rotatably connected to the mounting base 412, and a level 414 on the laser emitter 413.

[0029] It should be noted that scale lines can be set on the laser emitter 413 to facilitate the rotation angle of the laser emitter 413 to adapt to corrugated tower plates 11 with different inclinations. In the initial state, the diffuse reflector plate 422 will be located directly below the corresponding laser emitter 413. Therefore, the angle of the laser emitter 413 can be directly determined by the level 414 to determine whether it is precisely fixed. The laser emitter 413 and the mounting base 412 can be a rotating connection with a certain damping, which is a mature technology well known to those in the art and will not be described in detail in this embodiment. Mounting base 412 can slide on sliding frame 411 and be fixed in position using bolts.

[0030] The positioning mechanism 4 includes a laser sensing component 42, which includes a sliding frame 421 fixed on the connecting component 3, and a diffuse reflector 422 is provided on the sliding frame 421.

[0031] It should be noted that the diffuse reflector plate 422 can be fixed in position on the sliding frame 421 by bolts. When checking whether the upper and lower adjacent tower sections are accurately aligned, the laser emitter 413 and the diffuse reflector plate 422, except for the diffuse reflector plate 422 on the lowermost corrugated tower plate 11 and the laser emitter 413 on the uppermost corrugated tower plate 11, can be slid to a position that does not affect either of them. This allows the uppermost laser emitter 413 to rotate to an angle that matches the tilt of the corrugated tower plate 11, so that it emits a laser beam that illuminates the diffuse reflector plate 422 on the lowermost tower plate. By determining whether the laser beam can be observed on the diffuse reflector plate 422, it can be quickly determined whether the two tower sections 1 are accurately aligned.

[0032] The connecting component 3 includes multiple sets of fixing plates 31. Each set of fixing plates 31 includes several individual fixing plates 31 arranged in an array. The fixing plates 31 are used to fix two adjacent corrugated tower plates 11. A horizontal plate 32 is provided on the side of the fixing plate 31 away from the corrugated tower plate 11. Several reinforcing ribs 33 are evenly arranged between the horizontal plate 32 and the fixing plate 31. It should be noted that the fixing plate 31 will be customized to the corresponding size according to the corrugated tower plate 11 of different sizes.

[0033] The corrugated tower plate 11 has connecting holes 12 arranged in an array on both the left and right sides, and connecting holes 13 are evenly arranged on the upper and lower sides. The connecting holes 12 are adapted to the connecting plate 2, and the connecting holes 13 are adapted to the connecting component 3. The opposite sides of two circumferentially adjacent corrugated tower plates 11 are arranged in parallel, and the mating surfaces of two upper and lower adjacent corrugated tower plates 11 have the same thickness.

[0034] It should be noted that the connecting hole 12 and connecting hole 13 can be set to a universal specification to improve the versatility of the equipment parts. The opposite sides of the two circumferentially adjacent corrugated tower plates 11 will fit tightly when they are connected.

[0035] Several guide plates 14 are provided on the inner sides of both the upper and lower ends of the corrugated tower plate 11. Two guide grooves 34 are symmetrically arranged on the side of the fixing plate 31 near the corrugated tower plate 11. The guide plates 14 are adapted to the corresponding guide grooves 34.

[0036] It should be noted that the guide groove is funnel-shaped with a wider top and a narrower bottom, and the width of the guide plate 14 at the two side edges of the corrugated tower plate 11 is only half that of the guide plate 14 located in the middle of the corrugated tower plate 11. When two adjacent corrugated tower plates 11 are spliced ​​and aligned, the two half guide plates 14 are just merged into a complete piece.

[0037] The cross-section of the connecting plate 2 is T-shaped, and several threaded holes are arranged in an array on both the wing plate and the vertical plate of the connecting plate 2.

[0038] It should be noted that the threaded holes on the vertical plate facilitate the installation of other additional accessories inside tower section 1.

[0039] The assembly mechanism 6 includes a horizontally placed annular plate 61, on which several support seats 62 are provided. Several fixing plates 31 are detachably installed on the corresponding support seats 62. The support seats 62 are used to support the corrugated tower plate 11.

[0040] It should be noted that the support base 62 is usually provided with multiple sets of different sizes to adapt to corrugated tower plates 11 of different sizes and specifications, and the diameter of the ring-shaped support base 62 will also be adjusted according to the specifications of the corrugated tower plate 11. Furthermore, the top of the support base 62 will have an L-shaped groove. The L-shaped groove and the fitting fixing plate 31 will form a slot for placing the corrugated tower plate 11. The slot will also reserve a certain amount of redundant space for the corrugated tower plate 11 to facilitate the hoisting and angle adjustment of the corrugated tower plate 11.

[0041] A bolt hanging plate 5 is provided on the outer side of the corrugated tower plate 11. The bolt hanging plate 5 is used to hang bolts.

[0042] It should be noted that after the two adjacent tower sections 1 are aligned, the workers need to fix them together with bolts. The bolt mounting plate 5 can be detachably connected to the corrugated tower plate 11 with bolts.

[0043] Example 3 (see attached instruction manual) Figure 11 Based on Example 2, this example proposes an assembly method for a prefabricated wind turbine tower structure, including the following steps; Step 1: Pre-fix the connecting components 3 that are compatible with the bottom of any set of corrugated tower plates 11 onto the assembly mechanism 6 in a circular array, and pre-install a diffuse reflector plate 422 on the inner side of the connecting components 3. Step 2: Pre-fix the connecting plate 2 on any side of the corrugated tower plate 11, and pre-install the laser emitter 413 at the top of the connecting plate 2, so that the emitting end of the laser emitter 413 is perpendicular to the corresponding diffuse reflection plate 422. Step 3: Use a crane to vertically lift the corrugated tower plate 11 from the top and then lower it vertically into the corresponding support 62. Adjust the tilt angle of the corrugated tower plate 11 by using the crane. When the tilt angle of the corrugated tower plate 11 reaches the predetermined range, the laser emitted by the laser emitter 413 will just illuminate the diffuse reflection plate 422. At this time, use bolts to fix the two circumferentially adjacent corrugated tower plates 11 together. Step 4: The assembled tower sections 1 are hoisted and spliced ​​sequentially from bottom to top in order of decreasing maximum diameter.

[0044] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A prefabricated wind turbine tower structure, characterized in that, include: Assembly mechanism (6) and several tower sections (1), each tower section (1) is truncated cone shape, the maximum diameter of the several tower sections (1) decreases sequentially from bottom to top, and the several tower sections (1) are connected end to end in the order of decreasing maximum diameter; Each tower section (1) includes several corrugated tower plates (11), which are arranged in an array as a regular polygon. The longitudinal section of the corrugated tower plate (11) is an isosceles trapezoid that is wider at the bottom and narrower at the top. Two corrugated tower plates (11) adjacent to each other in the circumferential direction are provided with a connecting plate (2), and two corrugated tower plates (11) adjacent to each other in the upper and lower directions are provided with a connecting component (3). A positioning mechanism (4) is provided on the connecting plate (2). The positioning mechanism (4) includes a laser emitter (413) provided at the top of the connecting plate (2). A diffuse reflector plate (422) is provided on the connecting component (3). The emitting end of the laser emitter (413) faces the corresponding diffuse reflector plate (422).

2. The prefabricated wind turbine tower structure according to claim 1, characterized in that, The positioning mechanism (4) includes a laser emitting assembly (41), which includes a sliding frame (411) at the top of the connecting plate (2), a mounting base (412) on the sliding frame (411), a laser emitter (413) rotatably connected to the mounting base (412), and a level (414) on the laser emitter (413).

3. The prefabricated wind turbine tower structure according to claim 2, characterized in that, The positioning mechanism (4) includes a laser sensing component (42), which includes a sliding frame (421) fixed on the connecting component (3), and a diffuse reflector (422) is provided on the sliding frame (421).

4. The prefabricated wind turbine tower structure according to claim 3, characterized in that, The connecting component (3) includes multiple sets of fixing plates (31). Each set of fixing plates (31) includes several fixing plates (31) units arranged in an array. The fixing plates (31) are used to fix two adjacent corrugated tower plates (11). A horizontal plate (32) is provided on the side of the fixing plate (31) away from the corrugated tower plate (11). Several reinforcing ribs (33) are evenly arranged between the horizontal plate (32) and the fixing plate (31).

5. A prefabricated wind turbine tower structure according to claim 4, characterized in that, The corrugated tower plate (11) is provided with connecting holes 1 (12) on both the left and right sides, and connecting holes 2 (13) are provided on both the upper and lower sides. The connecting holes 1 (12) are adapted to the connecting plate (2), and the connecting holes 2 (13) are adapted to the fixing plate (31). The opposite sides of two adjacent corrugated tower plates (11) are arranged in parallel, and the mating surfaces of two adjacent corrugated tower plates (11) are of the same thickness.

6. The prefabricated wind turbine tower structure according to claim 5, characterized in that, Several guide plates (14) are provided on the inner sides of both the upper and lower ends of the corrugated tower plate (11). The fixing plate (31) has two guide grooves (34) arranged symmetrically on the side near the corrugated tower plate (11). The guide plates (14) are adapted to the corresponding guide grooves (34).

7. A prefabricated wind turbine tower structure according to claim 6, characterized in that, The cross-section of the connecting plate (2) is T-shaped, and several threaded holes are arranged in an array on both the wing plate and the upright plate of the connecting plate (2).

8. A prefabricated wind turbine tower structure according to claim 7, characterized in that, The assembly mechanism (6) includes a horizontally placed annular plate (61), on which a plurality of support seats (62) are provided, and a plurality of fixing plates (31) are detachably installed on the corresponding support seats (62), and the support seats (62) are used to support the corrugated tower plate (11).

9. A prefabricated wind turbine tower structure according to claim 8, characterized in that, The outer side of the corrugated tower plate (11) is provided with a bolt hanging plate (5), which is used to hang bolts.

10. An assembly method for a prefabricated wind turbine tower structure, characterized in that, Includes the following steps; Step 1: Pre-fix the connecting components (3) that are compatible with the bottom of any set of corrugated tower plates (11) onto the assembly mechanism (6) in a circular array, and pre-install a diffuse reflector plate (422) on the inner side of the connecting components (3). Step 2: Pre-fix the connecting plate (2) on any side of the corrugated tower plate (11), and pre-install a laser emitter (413) at the top of the connecting plate (2), so that the emitting end of the laser emitter (413) is perpendicular to the corresponding diffuse reflector plate (422). Step 3: Use a crane to vertically lift the corrugated tower plate (11) from the top and then vertically lower it into the corresponding support base (62). Adjust the tilt angle of the corrugated tower plate (11) by using the crane. When the tilt angle of the corrugated tower plate (11) reaches the predetermined range, the laser emitted by the laser emitter (413) will just illuminate the diffuse reflection plate (422). At this time, use bolts to fix and connect the two circumferentially adjacent corrugated tower plates (11). Step 4: The assembled tower sections (1) are hoisted and spliced ​​from bottom to top in descending order of maximum diameter.

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